chase



UNITED STATES PATENT FFIGE.

SAMUEL L. CHASE. O1 YVODSTUQK, VERMONT.

COOKING-STONE.

Srpecication forming part of Letters Patent Np. 1,799, dated SeptemberV25, 1840; Reissued August 11, 1,841, NO. 35.

To all ytti/mm if vmy/ concern lle it known that I, SAMUEL LOGAN.CH/isn, of lyoodstock, in the count-y of lindsor and State of Vermont,have invented a new and useful Improvement in the Manner of ConstructingStoves for Cooking and for Warming Apartments, which stove I denominatothe Rarelier Cooking-Stove;77 and I do hereby declare that the followingis a full and exact description thereof.

I sometimes construct my stoves with two, and sometimes with four,ovens, depending upon the extent of cooking which it is intended theyshall be capable of performing; but whether containing two, or four,ovens the main principle, or mode of operation, upon which myimprovement is founded, remains unchanged.

Figure 1, in the accompanying drawing, is a perspective representationof one of my four-oven stoves; A, being the front plate; B, the hearth;C, C', two of the ovens, the doors of which are removed, and D, the firechamber. E, is hinged cover that incloses a compartment in whichboilers, or other cooking utensils, may be placed; there being aperforated plate to receive them immediately over the tire chamber, asin most other cooking stoves. The other two ovens are at the back end ofthe stove on a level with C, C', and extending in length the width ofthe st-ove. Below the bottom plate D, of the tire chamber, is thecompartment that I denominate the rareier, which compartment constitutesa part of the tlue through which the heated air is to pass before itsexit through the stove pipe, and after it has traversed the respectiveflues which surround the ovens. a, a, a, are stoppers, that may beremoved for cleaning these lues. The hearth B, has a sink in it forcontaining coals, and is furnished with bars 6,' and over these there isa swinging hearth B, furnished with boiler holes, as represented,- thisswinging hearth I generally divide into two parts in the mannerrepresented in my tivoeoven stove, Fig. e, it being thus rendered moreconvenient and manageable. c, c, c, are holes admitting air to the coalswithin the sink in the hearth, by which combustion may be kept up whenthe swinging hearth is in place, and the boiler openings in it covered;there is a notch al, (Z, in the back edge of this hearth, which notch,when the swinging hearth and furnace door D', are closed, is embraced by,a .sloping projection e, e, on the furnace door, or `the projection maybe on the swingingliearth, and the notch or openingr on the idoor, whichconstitutes a Hue from the sink hearth into the chamber of combustion,itlnough which vapors and smoke may pass. F, is the stove pipe, orescape flue, passing ,down `through the `two back ovens, and conrmeeting below with the raretier.

Fig. 2, shows the stove with one of the ,side plates removed, exhibitingthe interior ,of the chamber of combustion; its top, or ,iboileig plateH, and the door D, leading into it being also removed. D, is its bot-`itom, and G, its back plate. I, I, is the line spaced denominated therarcfier and from ,this is a passage into the Hue F, through an,inclined flue f, j', at the rear end of the lire chamber; g, g, is adamper to regulate an ,opening leading directly into the due F, iwhichis to be opened when the ovens are ,not to be heated. The draft ofheated air, `:after circulating around the oven tlues is ,admitted intothat denominated the rarelier `,through an opening shown by dottedlines` and marked I), which opening leads into it tt'rom the flue below,under the lower side oven P Fig. l. J, J, are two openings through whichthe `heated air from the tire is to pass when the ovens are to be used;both these openings lead directly into the line space between the lowerand the upper ovens, and on each side of the flue F. These openings mayalso be furnished with dempers if preferred; but when the damper g, isopened for the direct draft, there will be little tendency to a draftthrough these openings. Sometimes, also, I make an opening at z, z, inthe front, upper, righthand corner of the chamber of combustion, whichopening I govern by a damper, as in the two-oven stove, seen at R R,Fig. de, and to be presently described; this, when opened, will allowthe heated air to pass directly into the flue between the two sideovens, without passing the whole circuit of the lines. K, is the handleof a damper (shown at K, Fig. 3,) which damper when open leaves acommunication from the Hue above the ovens, into the escape tine F, theetfect of opening this damper is to cause the draft to circulate aroundthe upper ovens only. M, is an opening from the boiler chamber into theflue F, which when the cover IC, is turned down so as to close saidspace, allows the steam to escape into the flue lt`.

l will now show the course of the draft when the ovens are all in use,and from thisI the mmlitieations produced by the respcctiiie daniperswill be apparent.

Fig. 3, is a view of the back end, and. of the oven side, of the stove(the outer plates and oven doorsl being removed to show the arrangement)and the course, of the draft through the flues, as indicated by thearrows. J, J are the two passages from the fire chamber into the Huebetween the upper and the lower ovens; and I will here observe that thisflue, and those also above the upper and below the lower oven, extenduninterruptedly between, over, and above, the back and side ovens,conjointly, just as though the two upper ovens were united in one, andthe two lower ovens were, also, similarly connected; these ovens,however, are divided by the partition plates N, N. From the openings J,J, the draft passes along between the upper and the lower ovens to theend Hue O; thence to, and along, the upper flue O; thence to the enddescending flue O2; thence to the bottom flue O3; and along this to theopening P Fig. Q, from the fore end of said flue into the rareier, ortiue under the tire chamber; in this the air is reheated, andconsequently rarefied, serving not only to promote the draft, butadapting the air to the purpose of' heating any apartment, through whichthe flue F, may be carried, in a very effective manner.

Fig. 4, is a perspective view of a stove of the same kind, but with twoovens only. The sunk hearth, the swinging hearth, the apparatus forbroiling, &c., are constructed substantially in the same manner as inthe stove already described. The swinging hearth B, B', is divided intotwo parts, as before indicated. The boiler plate H, may be inclosed by acover, like that marked E, in the four-oven stove, but this may beomitted, and it is not so represented. The top plate Q, is shown ashaving boiler holes, but these may be omitted, as they are in thefour-oven stove. The rareier under the fire chamber is similar to thatunder the fouroven stove, the draft passing into it exactly in the sameway, after having circulated around the flues of the two ovens. Thelowermost of these two ovens is on a level with, and immediately behind,the tire ('liambcr, and the other directly above it. 'lhe heated airfrom the tire ehan'iber Vis admitted into the `fille between these twoovens through openings lt, It, leading from it into the flue spacebetween the two ovens, which openings I regulate by dampers.

Fig. 5, is a back view of this stove, the back plate with the ovendoors, which it sustains, being removed to show the course of the tluesand of the draft. C. G, are the lower and upper ovens; O, thc middleoven flue, into which the heated air passes from the fire chamberthrough the openings R, R, Fig. 4; after which it traverses in thedirection of the arrows, and escapes from the lower flue into therarefier; and thence, by a device analogous to the flue f, f, in thefour-oven stove, finds its way to the exit pipe F', operating in allrespects in the same way with it.

Having th'us fully described the nature of my improvement, and shown howthe same is carried into operation, and having in so doing shown anddescribed many parts and devices, of which I do not claim to be theinventor, I now proceed to state what I do claim, and desire to secureby Letters Patent; viz:

l. The manner in which I have combined and arranged the fiues, includingthe rarefier, as set forth; that is to say, the admitting the heated airfrom the fire chamber into the flue between the upper and the lowerovens; conducting it thence through the flue above the upper oven;thence down through the flue at one end to the flue under the loweroven; thence into the rarefying flue under the fire chamber; and thenceinto the exit pipe; all substantially as herein made known, andrepresented.

2. I claim, in combination, the arrangement of the respective parts ofthe hearth for broiling, and other cooking operations; which arrangementconsists of the sunk hearth, furnished with the bars b, Z7, the openingsc, c, for the admission of air, the swinging hearth, and the Hue formedby t-he notch in said hearth, and the sloping projection at the loweredge ofthe furnace door, or on the swinging hearth.

SAML. L. CHASE.

Titnesses OEL BiLLINGs, C. I). lWARsH.

[Fnzs'r PRINTED 1913.]

